Documentation
¶
Index ¶
- Constants
- type Field
- type Frame
- type Func
- type Goroutine
- type Kind
- type Object
- type Process
- func (p *Process) Addr(x Object) core.Address
- func (p *Process) BuildVersion() string
- func (p *Process) DynamicType(t *Type, a core.Address) *Type
- func (p *Process) FindFunc(pc core.Address) *Func
- func (p *Process) FindObject(a core.Address) (Object, int64)
- func (p *Process) ForEachObject(fn func(x Object) bool)
- func (p *Process) ForEachPtr(x Object, fn func(int64, Object, int64) bool)
- func (p *Process) ForEachReversePtr(y Object, fn func(x Object, r *Root, i, j int64) bool)
- func (p *Process) ForEachRoot(fn func(r *Root) bool)
- func (p *Process) ForEachRootPtr(r *Root, fn func(int64, Object, int64) bool)
- func (p *Process) Globals() []*Root
- func (p *Process) Goroutines() []*Goroutine
- func (p *Process) IsPtr(a core.Address) bool
- func (p *Process) Process() *core.Process
- func (p *Process) Size(x Object) int64
- func (p *Process) Stats() *Stats
- func (p *Process) Type(x Object) (*Type, int64)
- type Root
- type Stats
- type Type
Constants ¶
const (
AttrGoKind dwarf.Attr = 0x2900
)
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type Frame ¶
type Frame struct {
// Set of locations that contain a live pointer. Note that this set
// may contain locations outside the frame (in particular, the args
// for the frame).
Live map[core.Address]bool
// contains filtered or unexported fields
}
A Frame represents the local variables of a single Go function invocation. (Note that in the presence of inlining, a Frame may contain local variables for more than one Go function invocation.)
func (*Frame) PC ¶
PC returns the program counter of the next instruction to be executed by this frame.
type Func ¶
type Func struct {
// contains filtered or unexported fields
}
A Func represents a Go function.
type Goroutine ¶
type Goroutine struct {
// contains filtered or unexported fields
}
type Object ¶
An Object represents a single reachable object in the Go heap. Unreachable (garbage) objects are not represented as Objects.
type Process ¶
type Process struct {
// contains filtered or unexported fields
}
A Process represents the state of a Go process that core dumped.
func (*Process) BuildVersion ¶
BuildVersion returns the Go version that was used to build the inferior binary.
func (*Process) DynamicType ¶
DynamicType returns the concrete type stored in the interface type t at address a. If the interface is nil, returns nil.
func (*Process) FindFunc ¶
FindFunc returns the function which contains the code at address pc, if any.
func (*Process) FindObject ¶
FindObject finds the object containing a. Returns that object and the offset within that object to which a points. Returns 0,0 if a doesn't point to a live heap object.
func (*Process) ForEachObject ¶
ForEachObject calls fn with each object in the Go heap. If fn returns false, ForEachObject returns immediately.
func (*Process) ForEachPtr ¶
ForEachPtr calls fn for all heap pointers it finds in x. It calls fn with:
the offset of the pointer slot in x the pointed-to object y the offset in y where the pointer points.
If fn returns false, ForEachPtr returns immediately. For an edge from an object to its finalizer, the first argument passed to fn will be -1. (TODO: implement)
func (*Process) ForEachReversePtr ¶
ForEachReversePtr calls fn for all pointers it finds pointing to y. It calls fn with:
the object or root which points to y (exactly one will be non-nil) the offset i in that object or root where the pointer appears. the offset j in y where the pointer points.
If fn returns false, ForEachReversePtr returns immediately.
func (*Process) ForEachRoot ¶
ForEachRoot calls fn with each garbage collection root. If fn returns false, ForEachRoot returns immediately.
func (*Process) ForEachRootPtr ¶
ForEachRootPtr behaves like ForEachPtr but it starts with a Root instead of an Object.
func (*Process) Goroutines ¶
type Root ¶
type Root struct {
Name string
Addr core.Address
Type *Type // always non-nil
// Frame, if non-nil, points to the frame in which this root lives.
// Roots with non-nil Frame fields refer to local variables on a stack.
// A stack root might be a large type, with some of its fields live and
// others dead. Consult Frame.Live to find out which pointers in a stack
// root are live.
Frame *Frame
}
A Root is an area of memory that might have pointers into the Go heap.
type Stats ¶
A Stats struct is the node of a tree representing the entire memory usage of the Go program. Children of a node break its usage down by category. We maintain the invariant that, if there are children, Size == sum(c.Size for c in Children).
type Type ¶
type Type struct {
Name string
Size int64
Kind Kind // common dwarf types.
// Fields only valid for a subset of kinds.
Count int64 // for kind == KindArray
Elem *Type // for kind == Kind{Ptr,Array,Slice,String}. nil for unsafe.Pointer. Always uint8 for KindString.
Fields []Field // for kind == KindStruct
// contains filtered or unexported fields
}
A Type is the representation of the type of a Go object. Types are not necessarily canonical. Names are opaque; do not depend on the format of the returned name.
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